6. Debt

	As of Jun. 30, 2020			As of Dec. 31, 2019

10.05% Senior Notes, Series C, due 2020	$	6,500		$	6,500
8.43% Senior Notes, Series D, due 2022		7,500			7,500
Variable Rate Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series 2008A, due 2029		12,000			12,000
3.00% Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series A of 2019, due 2036		10,500			10,500
3.10% Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series B of 2019, due 2038		14,870			14,870
3.23% Senior Notes, due 2040		15,000			15,000
4.00% - 4.50% York County Industrial Development Authority Exempt Facilities Revenue Bonds, Series 2015, due 2029 - 2045		10,000			10,000
4.54% Senior Notes, due 2049		20,000			20,000
Committed Lines of Credit, due 2022		9,626			7,672
Total long-term debt		105,996			104,042
Less discount on issuance of long-term debt		(186	)		(192	)
Less unamortized debt issuance costs		(2,735	)		(2,815	)
Less current maturities		(6,500	)		(6,500	)
Long-term portion	$	96,575		$	94,535

In the second quarter of 2020, the Company renewed its $13,000 committed line of credit and extended the maturity date to May 2022. The Company renewed its $11,000 committed line of credit and extended its maturity date to May 2022, increasing the interest rate to LIBOR plus 1.75% with an unused commitment fee. The Company renewed its $7,500 committed line of credit and extended its maturity date to June 2022, increasing the interest rate to LIBOR plus 1.25% with an interest rate floor.